Stem-winding mechanism.



No. 819,714. PATENTED MAY a, 1906. N. BGUBLIN.

STEM WINDING MECHANISM.

APPLICATION FILED SEPT. 1e. 1904.

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UNITED srArnsf PATENT CFFICE.

Specification of Letters Patent.

atenten May 8, 1906.

Application filed September 16, 1904. Serial No. 224,705.

To all whom, it may concern:

Be it known that I, NUMA BGUELIN, a citizen of the Republic of Switzerland, residing at Solothurn, Switzerland, have invented certain new and useful Improvements in Stem-Winding Mechanism, of which the following is a' speciiication.

s invention relates to a keyless mechanism for winding up and setting the hands of watches, whereby according as the winderstem is pushed more or less inward the hands will be set or'the going-spring wound up.

construction of the mechanism according to this invention is illustrated, by way of example, in the accompanying drawings, in which- Figure l is a plan view, the parts being shown in the position for the winding of the watch. Fig. 2 is a plan view with the parts in the position for setting the hands. Fig. 3 is an under side view, partly in section, of the mechanism opposite to that of Fig. 1.

The winding-sleeve A, operated by a pendant-stem A', provided with a turn-button or knob A2, has loosely mounted upon it a crownwheel with peripheral teeth B and lateral teeth B. The lower square portion A4 of the said sleeve A carries a longitudinally-sliding ratchet-clutch C, which can be made by the action of a lever D, pivoted at d, either to engage with the wheel E for setting the hands or to become coupled to the teeth B of the crown-wheel of the winding-gear. The sleeve A is provided throughout the whole of its length with a central passage A3, in which can move a pin F, provided at the bottom with a head G, which is constantly pressed upon by a lever K, pivoted at K3, mounted between the plate L and a pillar-plate. In the plate L are guide-grooves L L2, through which project pins K K2 on the lever K. These pins engage, respectively, a clutch-operating lever D, pivoted at d, and a strong spring P, normally tending to force the pin K2 inward and the pin K against the side of the pivoted lever D. (See Fig. 2.) A second spring N is provided to act against the tail of the lever D to cause it when the parts are in the position shown in Fig. l to move the clutch C into engagement with the lateral teeth B of the crown-wheel B, Fig. 1.

The operation is as follows: In the position shown in Fig. 2 the spring P acts against the pin K2, pressing it inward, thereby causing the arm K4 of the lever K to press against the headed pin F. The other pin K is at the movable on said same time pressed against the lever D, causing the clutch C to engage the pinion E for setting the hands. Now when the pin A is pressed inward by its knob A2 the pin F is also moved inward, pressing away the end K4 of the lever K against the action of the spring P, which, together with the pins K and K2, is pressed back into the position shown in Fig. 1. The forward end of the lever D is consequently freed from` the pressure of the pin K2, and the spring N can thereupon act upon the tail of the lever D to cause it to slide the clutch member C into engagement with the lateral teeth B of the crown-wheel for the purpose of winding up the watch. A screw at the side of the plate L has half of its head cut away, as shown, Figs. l and 2, to enable the spring P to be released when iitting up before putting the mechanism into the casing, while by turning the head through a half or quarter revolution the head of the screw will form a seating for the end of the spring and put it into operative position.

The winding and setting pin can be secured from complete withdrawal from the watchcasing in any usual or suitable manner.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a watch-hand setting and winding mechanism, a pivoted lever, two pins thereon, a pivoted clutch-operating lever situated between the pins, and a spring acting on one pin, and a second spring acting against the tail of the clutch-operating lever, substantially as set forth.

2. In a watch-hand setting and winding mechanism comprising a longitudinally-movable winding and setting pin, a rotatable sleeve, a crow -pinion loosely mounted on said sleeve, a double clutch longitudinally sleeve, a pivoted lever operated by the winding and setting pin, two pins on said lever, a strong spring acting against one pin, a pivoted clutch-operating lever and a second spring acting against the tail of said lever in opposition to the firstnamed spring substantially as set forth.

3. A watch-hand -settin and winding mechanism comprising a hol ow sleeve A, a winding and setting pin A a pin F, a crownpinion B, a longitudinally-movable clutch C, a lever K, pins K K2 thereon, a pivoted lever D and springs P, N, substantially as set forth.

4. In a watch-hand setting and winding mechanism the combination of a rotatable IOO IIO

hollow sleeve of part circular and part angular bore, a winding and setting pin adapted to engage and move longitudinally in the angular portion of the bore, a pin longitudinally movable in the Circular bore of the sleeve', a head on the bottom end of the pin, a crown inion loosely mounted on the sleeve,` a double olutoh longitudinally movable on said sleeve, a pivoted lever operated by the winding and setting pin, two pins on said lever7 a strong spring acting against one pin, a pivoted clutch-operating lever and a second spring acting against the tail of said lever in opposition to the irst-named spring substantially as set forth. I5 In testimony whereof l have signed my name to this specification in the presence of two subscribing Witnesses. A

NUMA BEGUELN. Witnesses:

R. MossMANN, A. FROELIOHER. 

